CN107707621B - A kind of method and device for realizing intelligent buffer - Google Patents
A kind of method and device for realizing intelligent buffer Download PDFInfo
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- CN107707621B CN107707621B CN201710763354.5A CN201710763354A CN107707621B CN 107707621 B CN107707621 B CN 107707621B CN 201710763354 A CN201710763354 A CN 201710763354A CN 107707621 B CN107707621 B CN 107707621B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
- H04L67/5682—Policies or rules for updating, deleting or replacing the stored data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
Abstract
The invention discloses a kind of method and device for realizing intelligent buffer, the method includes：Determine each renewal time point accessed to picture in preset period of time；According to accessing to each access for determining client as the mapping relations with client to the renewal time point sequence as type, determine the corresponding access of this client to as the corresponding ttl value of type according to renewal time point sequence；According to the access of client to the access of picture to determining that corresponding ttl value is updated picture this access according to this ttl value as type.The method of the present invention meets customer action according to the access of client to the TTL determined as newer historical rule, compared with prior art in the TTL that determines of method it is more reasonable.
Description
Technical field
The present invention relates to Internet technical field more particularly to a kind of method and devices for realizing intelligent buffer.
Background technology
With the development of internet, content distributing network (Content Delivery Network, CDN) takes as promotion
The solution of business quality is widely used.In content distributing network business, by being added one in existing Internet architecture
A cache layer, and the cache layer for guiding user to closest network edge goes acquisition data to achieve the purpose that promote access effect.
Wherein flow scheduling and edge cache are the core technology of CDN.
In CDN edge cache technologies, the content of caching by life cycle (Time To Live, TTL cache contents
Time.It can will be accessed to expired as being set to, if there is new user will trigger CDN cache servers Hui Yuan when TTL becomes 0
Stand (the web site contents server of CDN client) reacquire content.The update of source station cannot be timely automated same if TTL is long
Step；If TTL is too short, pressure and performance requirement that source influences service quality, promotes source station can be frequently returned.
The shortcomings that prior art includes：
1, the TTL of CDN cache servers can generally defer to source station, i.e. ttl value is arranged in client, and CDN cache servers are therewith
Synchronous, such mode does not give the rational reference value of client, client source number can only be caused back to increase the short as possible of TTL settings
Add, source station pressure increases.
2, CDN system can not know that the historical behavior of client can not the adjustment TTL times.
3, there is no the implementations of intelligent buffer strategy, lack the scheme that systemic property calculates TTL, lack different access pair
The TTL data models and application process of picture.
So determining that a rational TTL is the technical issues that need to address.
Invention content
In order to solve the above technical problem, the present invention provides a kind of method and devices for realizing intelligent buffer.
The present invention provides a kind of methods for realizing intelligent buffer, including：
Determine each renewal time point accessed to picture in preset period of time；
The each of client, which accesses to the renewal time point sequence as type, to be determined to the mapping relations of picture and client according to accessing,
Determine the corresponding access of this client to as the corresponding ttl value of type according to renewal time point sequence；
According to the access of client to the access of picture to determining corresponding ttl value according to this ttl value to this access pair as type
As being updated.
The method of above-mentioned realization intelligent buffer also has the characteristics that：
It is described to determine the corresponding access of respective client to as the corresponding ttl value of type includes according to renewal time point sequence：
Renewal time point sequence is chronologically arranged, using preset duration as granularity be updated time point merge, according to after merging more
New time point sequence determines the corresponding access of respective client to as the corresponding ttl value of type.
The method of above-mentioned realization intelligent buffer also has the characteristics that：
The renewal time point sequence according to after merging determines the corresponding access of respective client to as the corresponding TTL of type
Value includes：
Judge whether the renewal time point sequence after merging has periodic characteristic；
When not having periodic characteristic of renewal time point sequence after merging calculates the renewal time point sequence after this merging
The interval duration of all two adjacent renewal time points in row, using the median of all interval durations as the phase of respective client
It should access to as the corresponding ttl value of type；
Renewal time point sequence after merging with periodic characteristic and only with a cycle when, by this period
It is worth the corresponding access as respective client to as the corresponding ttl value of type；
When having in periodic characteristic and each period including multiple subcycles of renewal time point sequence after merging,
Set with this multiple subcycle is accessed as the corresponding of respective client to as the corresponding ttl value of type.
The method of above-mentioned realization intelligent buffer also has the characteristics that：
The method further includes：
According to the mapping relations of client and industry, when determining that the corresponding each client of industry each accesses to update as type
Between point sequence, determine the corresponding access of the industry to as the corresponding ttl value of type according to renewal time point sequence.
The method of above-mentioned realization intelligent buffer also has the characteristics that：
The method further includes：For frequent customer access to as the access using this frequent customer to the access of picture to as class
The ttl value of type is updated, for new client using this new affiliated industry of client access to the access of picture to the TTL as type
Value is updated.
The present invention also provides a kind of realization intelligent buffer devices, including：
Preprocessing module, for determining each renewal time point accessed to picture in preset period of time；
Determining module, for according to access to as and client mapping relations determine client it is each access to as type more
New time point sequence determines the corresponding access of this client to as the corresponding ttl value of type according to renewal time point sequence；
Update module, according to the access of client to the access of picture to determining corresponding ttl value according to this ttl value pair as type
This is accessed to as being updated.
Above-mentioned realization intelligent buffer device also has the characteristics that：
The determining module includes sequencing unit, combining unit, determination unit；
The sequencing unit, for chronologically arranging renewal time point sequence；
The combining unit, for being updated time point merging by granularity of preset duration；
The determination unit, for being determined the corresponding access of respective client to picture according to the renewal time point sequence after merging
The corresponding ttl value of type.
Above-mentioned realization intelligent buffer device also has the characteristics that：
The determination unit, for determining respective client according to the renewal time point sequence after merging using following methods
It is corresponding to access to as the corresponding ttl value of type：
Judge whether the renewal time point sequence after merging has periodic characteristic；
When not having periodic characteristic of renewal time point sequence after merging calculates the renewal time point sequence after this merging
The interval duration of all two adjacent renewal time points in row, using the median of all interval durations as the phase of respective client
It should access to as the corresponding ttl value of type；
Renewal time point sequence after merging with periodic characteristic and only with a cycle when, by this period
It is worth the corresponding access as respective client to as the corresponding ttl value of type；
When having in periodic characteristic and each period including multiple subcycles of renewal time point sequence after merging,
Set with this multiple subcycle is accessed as the corresponding of respective client to as the corresponding ttl value of type.
Above-mentioned realization intelligent buffer device also has the characteristics that：
The determination unit is additionally operable to the mapping relations according to client and industry, determines that the corresponding each client's of industry is each
It accesses to the renewal time point sequence as type, determines the corresponding access of the industry to as type pair according to renewal time point sequence
The ttl value answered.
Above-mentioned realization intelligent buffer device also has the characteristics that：
Described device further includes cache module, for the access for frequent customer to as the access using this frequent customer is to picture
Access the ttl value as type is updated, use access of the access to picture of this new affiliated industry of client for new client
Ttl value as type is updated.
The method of the present invention meets customer action according to the access of client to the TTL determined as newer historical rule,
The TTL that method in compared with prior art is determined is more reasonable.
Description of the drawings
The attached drawing for constituting the part of the present invention is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart for the method that intelligent buffer is realized in embodiment；
Fig. 2 is the structure chart for the device that intelligent buffer is realized in embodiment.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.It needs
Illustrate, in the absence of conflict, the features in the embodiments and the embodiments of the present application mutually can be combined arbitrarily.
Fig. 1 is the flow chart for the method that intelligent buffer is realized in embodiment；The method includes：
Step 1, each renewal time point accessed to picture in preset period of time is determined；
Step 2, determine each access of client to the renewal time as type the mapping relations of picture and client according to access
Point sequence determines the corresponding access of this client to as the corresponding ttl value of type according to renewal time point sequence；
Step 3, according to the access of client to the access of picture to determining corresponding ttl value according to this ttl value to this as type
It accesses to as being updated.
Wherein,
Further include judging whether to need to carry out the newer judgment step of ttl value before step 1, this judgment step includes：
Reach specified renewal time time cycle point, the triggering that Adds User carries out the update of TTL.
It is accessed to as that can be file or URL in step 1.Step 1 includes：
Step 101 obtains the data source respectively accessed in preset period of time to picture, this data source includes the access in preset period of time
Daily record, this access log are the access logs for meeting at least one of the following conditions：
One, filter out the access log of TCP_MISS fields；
Two, including HTTP code are 304 access log；
Three, the changed access log of md5 values of file.
Step 102, it determines each renewal time point accessed to picture, chronologically arranges each renewal time point accessed to picture.
Such as：
Determine each access of client to the renewal time as type the mapping relations of picture and client according to access in step 2
Point sequence.
Such as：It accesses to as being that client A corresponds to file1 and file2 with the mapping relations of client；Client B corresponds to
url1。
Then determine that each access of client is to the renewal time point sequence as type：
In step 2, determine the corresponding access of respective client to as the corresponding ttl value packet of type according to renewal time point sequence
It includes：Renewal time point sequence is chronologically arranged, time point merging is updated by granularity of preset duration, after merging
Renewal time point sequence determines the corresponding access of respective client to as the corresponding ttl value of type.
Such as：Preset duration is 5 minutes, corresponds to this granularity after being updated time point merging as granularity using preset duration
Time window predeterminated position time point as merge after time point, predeterminated position can be starting point, end point, in
Between put or preset ratio position.
Be updated time point merge after the renewal time point sequence of each client be：
Determine the corresponding access of this client to as type is corresponding according to the renewal time point sequence after merging in step 2
Ttl value includes：
Judge whether the renewal time point sequence after merging has periodic characteristic；
When not having periodic characteristic of renewal time point sequence after merging calculates the renewal time point sequence after this merging
The interval duration of all two adjacent renewal time points in row, using the median of all interval durations as the phase of respective client
It should access to as the corresponding ttl value of type；
Renewal time point sequence after merging with periodic characteristic and only with a cycle when, by this period
It is worth the corresponding access as respective client to as the corresponding ttl value of type；
When having in periodic characteristic and each period including multiple subcycles of renewal time point sequence after merging,
Set with this multiple subcycle is accessed as the corresponding of respective client to as the corresponding ttl value of type.
According in the example above, the access of the network LOGO pictures of client A is to the renewal time point after the merging as type
Sequence with periodic characteristic and only with a cycle, this period is one day.The access pair of the homepage page address of client B
As type merging after renewal time point sequence with periodic characteristic and only with a cycle, this period is 12 small
When.If certain access of some client C with periodic characteristic and has the renewal time point sequence after the merging as type
There are two subcycles, such as 3 hours, 21 hours, then by corresponding the accessing to the TTL as type of this client C of the set of subcycle
Value.
Further include in this method：According to the mapping relations of client and industry, each access of the corresponding each client of industry is determined
To the renewal time point sequence as type, determine the corresponding access of the industry to as type is corresponding according to renewal time point sequence
Ttl value.For example, client A and client B both correspond to industry one, then the corresponding access of the industry one is to as the corresponding ttl value of type
For：
According to renewal time point sequence determine the access of the industry to as the corresponding ttl value of type with it is above-mentioned according to update when
Between point sequence determine that the access of client is identical to the method as the corresponding ttl value of type, details are not described herein again.
The use of the method for this TTL include at least one of following manner in the method：
Access for frequent customer carries out more the ttl value as type the access of picture using the access of this frequent customer on picture
Newly, the access of picture is updated the ttl value as type using the access of this new affiliated industry of client for new client.
For the client for enabling automated intelligent cache policy, each access of client is sent to the TTL numerical value as type
Cache server carries out given client and accesses the update to the acquiescence TTL numerical value as type, the number that this follow-up client newly caches
According to, will cache the TTL times；And the TTL numerical value of new each type file is sent to client.
For the client for being not turned on automated intelligent cache policy, every a time cycle, by each type file
TTL numerical value is sent to client, and client voluntarily judges whether to data update.
The each of each client is accessed into each access to ttl value, every profession and trade as type to as class every a time cycle
The ttl value of type is sent to operation management person, as an optimization data reference.
Fig. 2 is the structure chart for realizing intelligent buffer device, this device includes：Preprocessing module, determining module and update mould
Block.
Preprocessing module is used to determine each renewal time point accessed to picture in preset period of time；
Determining module be used for according to access to as and client mapping relations determine client it is each access to as type more
New time point sequence determines the corresponding access of this client to as the corresponding ttl value of type according to renewal time point sequence；
Update module is according to the access of client to the access of picture to determining corresponding ttl value according to this ttl value pair as type
This is accessed to as being updated.
Wherein,
Determining module includes sequencing unit, combining unit, determination unit；
Sequencing unit is for chronologically arranging renewal time point sequence；
Combining unit is used to be updated time point merging by granularity of preset duration；
Determination unit is used to determine the corresponding access of respective client to as type according to the renewal time point sequence after merging
Corresponding ttl value.
Determination unit is also used for the phase that following methods determine respective client according to the renewal time point sequence after merging
It should access to as the corresponding ttl value of type：
Judge whether the renewal time point sequence after merging has periodic characteristic；
When not having periodic characteristic of renewal time point sequence after merging calculates the renewal time point sequence after this merging
The interval duration of all two adjacent renewal time points in row, using the median of all interval durations as the phase of respective client
It should access to as the corresponding ttl value of type；
Renewal time point sequence after merging with periodic characteristic and only with a cycle when, by this period
It is worth the corresponding access as respective client to as the corresponding ttl value of type；
When having in periodic characteristic and each period including multiple subcycles of renewal time point sequence after merging,
Set with this multiple subcycle is accessed as the corresponding of respective client to as the corresponding ttl value of type.
Determination unit is additionally operable to the mapping relations according to client and industry, determines each access pair of the corresponding each client of industry
As the renewal time point sequence of type, determine the corresponding access of the industry to as type is corresponding according to renewal time point sequence
Ttl value.
This device further include cache module be used for for frequent customer access to as using this frequent customer access to as
Access is updated the ttl value as type, the access pair for new client using the access of this new affiliated industry of client to picture
As the ttl value of type is updated.
The method of the present invention meets customer action according to the access of client to the TTL determined as newer historical rule,
The TTL that method in compared with prior art is determined is more reasonable.
Descriptions above can combine implementation individually or in various ways, and these variants all exist
Within protection scope of the present invention.
One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program
Related hardware is completed, and described program can be stored in computer readable storage medium, such as read-only memory, disk or CD
Deng.Optionally, all or part of step of above-described embodiment can also be realized using one or more integrated circuits, accordingly
Ground, the form that hardware may be used in each module/unit in above-described embodiment are realized, the shape of software function module can also be used
Formula is realized.The present invention is not limited to the combinations of the hardware and software of any particular form.
It should be noted that herein, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that article or equipment including a series of elements include not only those elements, but also includes not having
There is the other element being expressly recited, or further includes for this article or the intrinsic element of equipment.Do not limiting more
In the case of system, the element that is limited by sentence " including ... ", it is not excluded that including the element article or equipment in
There is also other identical elements.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, reference only to preferred embodiment to this hair
It is bright to be described in detail.It will be understood by those of ordinary skill in the art that can modify to technical scheme of the present invention
Or equivalent replacement should all cover the claim model in the present invention without departing from the spirit of the technical scheme of the invention and range
In enclosing.
Claims (10)
1. a kind of method for realizing intelligent buffer, which is characterized in that including：
Determine each renewal time point accessed to picture in preset period of time；
The each of each client, which accesses to the renewal time point sequence as type, to be determined to the mapping relations of picture and each client according to accessing,
Determine the corresponding access of each client to as the corresponding ttl value of type according to renewal time point sequence；
According to the access of client to the access of picture to determining corresponding ttl value as type, according to this ttl value to this access to as into
Row update.
2. the method for realizing intelligent buffer as described in claim 1, which is characterized in that
It is described to determine the corresponding access of respective client to as the corresponding ttl value of type includes according to renewal time point sequence：It will more
New time point sequence chronologically arranges, and is that granularity is updated time point merging using preset duration, when according to update after merging
Between point sequence determine the corresponding access of respective client to as the corresponding ttl value of type.
3. the method for realizing intelligent buffer as claimed in claim 2, which is characterized in that
The renewal time point sequence according to after merging determines the corresponding access of respective client to as the corresponding ttl value packet of type
It includes：
Judge whether the renewal time point sequence after merging has periodic characteristic；
When not having periodic characteristic of renewal time point sequence after merging calculates in the renewal time point sequence after this merging
The interval duration of all two adjacent renewal time points, using the median of all interval durations as the corresponding visit of respective client
It asks to as the corresponding ttl value of type；
Renewal time point sequence after merging with periodic characteristic and only with a cycle when, the value in this period is made
Corresponding for respective client accesses to as the corresponding ttl value of type；
When having in periodic characteristic and each period including multiple subcycles of renewal time point sequence after merging, will have
There is the set of this multiple subcycle to be accessed to as the corresponding ttl value of type as the corresponding of respective client.
4. the method as claimed in claim 1,2 or 3 for realizing intelligent buffer, which is characterized in that
The method further includes：
According to the mapping relations of client and industry, determine each access of the corresponding each client of industry to the renewal time point as type
Sequence determines the corresponding access of the industry to as the corresponding ttl value of type according to renewal time point sequence.
5. the method for realizing intelligent buffer as claimed in claim 4, which is characterized in that
The method further includes：For frequent customer access to as using this frequent customer access to the access of picture to as type
Ttl value is updated, for new client using this new affiliated industry of client access to the access of picture to the ttl value as type into
Row update.
6. a kind of realization intelligent buffer device, which is characterized in that including：
Preprocessing module, for determining each renewal time point accessed to picture in preset period of time；
Determining module, for according to access to as and each client mapping relations determine each client it is each access to as type more
New time point sequence determines the corresponding access of each client to as the corresponding ttl value of type according to renewal time point sequence；
Update module, according to the access of client to the access of picture to determining corresponding ttl value as type, according to this ttl value to this
It accesses to as being updated.
7. realizing intelligent buffer device as claimed in claim 6, which is characterized in that
The determining module includes sequencing unit, combining unit, determination unit；
The sequencing unit, for chronologically arranging renewal time point sequence；
The combining unit, for being updated time point merging by granularity of preset duration；
The determination unit, for being determined the corresponding access of respective client to as type according to the renewal time point sequence after merging
Corresponding ttl value.
8. realizing intelligent buffer device as claimed in claim 7, which is characterized in that
The determination unit, for determining the corresponding of respective client according to the renewal time point sequence after merging using following methods
It accesses to as the corresponding ttl value of type：
Judge whether the renewal time point sequence after merging has periodic characteristic；
When not having periodic characteristic of renewal time point sequence after merging calculates in the renewal time point sequence after this merging
The interval duration of all two adjacent renewal time points, using the median of all interval durations as the corresponding visit of respective client
It asks to as the corresponding ttl value of type；
Renewal time point sequence after merging with periodic characteristic and only with a cycle when, the value in this period is made
Corresponding for respective client accesses to as the corresponding ttl value of type；
When having in periodic characteristic and each period including multiple subcycles of renewal time point sequence after merging, will have
There is the set of this multiple subcycle to be accessed to as the corresponding ttl value of type as the corresponding of respective client.
9. the realization intelligent buffer device as described in claim 6,7 or 8, which is characterized in that
The determination unit is additionally operable to the mapping relations according to client and industry, determines each access of the corresponding each client of industry
To the renewal time point sequence as type, determine the corresponding access of the industry to as type is corresponding according to renewal time point sequence
Ttl value.
10. realizing intelligent buffer device as claimed in claim 9, which is characterized in that
Described device further includes cache module, for the access for frequent customer to the visit as the access using this frequent customer to picture
Ask and the ttl value as type be updated, for new client using this new affiliated industry of client access to the access of picture to picture
The ttl value of type is updated.
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| CN201710763354.5A CN107707621B (en) | 2017-08-30 | 2017-08-30 | A kind of method and device for realizing intelligent buffer |
| PCT/CN2018/102817 WO2019042298A1 (en) | 2017-08-30 | 2018-08-29 | Method and device for achieving smart caching, and computer-readable storage medium and computer device thereof |
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| CN107707621B (en) * | 2017-08-30 | 2018-07-20 | 贵州白山云科技有限公司 | A kind of method and device for realizing intelligent buffer |
| CN110046175B (en) * | 2019-03-18 | 2023-02-28 | 创新先进技术有限公司 | Cache updating and data returning method and device |
| US10972577B1 (en) * | 2020-01-21 | 2021-04-06 | Cbs Interactive Inc. | Systems, methods, and storage media for managing traffic on a digital content delivery network |
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| CN101656753B (en) * | 2008-08-21 | 2012-06-06 | 中国移动通信集团公司 | Content synchronization method, equipment and system for dynamic content delivery |
| CN102571839B (en) * | 2010-12-15 | 2015-02-18 | 北京邮电大学 | P2P content delivery method based on social attribute of users and system adopting same |
| CN102137006B (en) * | 2010-12-31 | 2013-12-18 | 华为技术有限公司 | Data transmission method and equipment in CDN (Content Delivery Network) |
| US9438487B2 (en) * | 2012-02-23 | 2016-09-06 | Ericsson Ab | Bandwith policy management in a self-corrected content delivery network |
| ES2441490B1 (en) * | 2012-08-02 | 2015-04-13 | Telefónica, S.A. | METHOD AND SYSTEM OF STORAGE IN WEB CACHE FOR A CONTENT DISTRIBUTION NETWORK (CDN) |
| US9276983B2 (en) * | 2015-05-01 | 2016-03-01 | Amazon Technologies, Inc. | Content delivery network video content invalidation through adaptive bitrate manifest manipulation |
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| CN107707621B (en) * | 2017-08-30 | 2018-07-20 | 贵州白山云科技有限公司 | A kind of method and device for realizing intelligent buffer |
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